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Posted by =?iso-8859-15?Q?Tekkie=AE?= on October 31, 2006, 9:46 pm
posted for all of us...
> I have a newer 2002 80% efficiency oil furnace. I do not know much
> about HVAC but I'll try to explain as best I can. A steel exhaust
> flue extends essentially straight up towards the roof. About a year
> ago a streak of "green stuff" began dripping down the outside of the
> flue. Just started using the heater again and noticed there's about 4
> streaks of this "Green stuff". I finally opened the bottom flue cap to
> check it out. There was a lot of soot and I couldn't see the source of
> the "green stuff". It appears the green stuff is coming from between
> the inner flue and an outer steel tube. Does anyone have a clue what
> this is and how to fix it? The green stuff drips down and some has
> collected on the floor. It hardens and almost looks like acid or
> liquid mold.
>
>
Steve McQueen in "The Blob"
--
Tekkie Don't bother to thank me, I do this as a public service.
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> about HVAC but I'll try to explain as best I can. A steel exhaust
> flue extends essentially straight up towards the roof. About a year
> ago a streak of "green stuff" began dripping down the outside of the
> flue. Just started using the heater again and noticed there's about 4
> streaks of this "Green stuff". I finally opened the bottom flue cap to
> check it out. There was a lot of soot and I couldn't see the source of
> the "green stuff". It appears the green stuff is coming from between
> the inner flue and an outer steel tube. Does anyone have a clue what
> this is and how to fix it? The green stuff drips down and some has
> collected on the floor. It hardens and almost looks like acid or
> liquid mold.
>
>